Impacts of climate change on the yields of leguminous crops in the Guinea Savanna agroecological zone of Ghana

作     者：Enoch YELELIERE Philip ANTWI-AGYEI Frank BAFFOUR-ATA Enoch YELELIERE;Philip ANTWI-AGYEI;Frank BAFFOUR-ATA

作者机构：Department of Environmental ScienceCollege of ScienceKwame Nkrumah University of Science and TechnologyKumasiGhana 

出 版 物：《Regional Sustainability》 (区域可持续发展（英文）)

年 卷 期：2023年第4卷第2期

页      面：139-149页

学科分类：090101[农学-作物栽培学与耕作学] 09[农学] 0901[农学-作物学] 

基　　金：Ghana Meteorological Agency Ontario Ministry of Food and Agriculture, OMAF Kwame Nkrumah University of Science and Technology, KNUST 

主　　题：Climate change Leguminous crops(groundnuts,cowpeas,and soybeans) Guinea Savanna Annual average temperature Rainfall indices Number of dry days 

摘      要：The impacts of climate change on crop yields are receiving renewed interest,with focus on cereals and staple crops at the regional and national ***,the impacts of climate change on the yields of leguminous crops in the local context has not been ***,an in-depth understanding of climate change in the local context may support the design of locally relevant adaptation responses to current and future climate *** study examined the impacts of climate variables(annual rainfall,annual average temperature,rainfall indices(rainfall onset,rainfall cessation,and the length of rainy days),and the number of dry days)on the yields of leguminous crops(groundnuts,cowpeas,and soybeans)in the Guinea Savanna agroecological zone of Ghana during the period of *** data were analysed using Mann-Kendall’s trend,Sen’s slope test,correlation analysis,and Multiple Regression Analysis(MRA).The findings revealed that annual rainfall,annual average temperature,rainfall onset,rainfall cessation,and the length of rainy days,and the number of dry days all showed varied impacts on the yields of groundnuts,cowpeas,and *** trend analysis detected a marginal decrease in the amount of rainfall,rainfall onset,and the number of dry days from 1989 to 2020(P0.050).Annual average temperature and the length of rainy days substantially varied(P0.050)from 1989 to 2020,showing an increasing *** findings also showed a marked upward trend for the yields of groundnuts,cowpeas,and soybeans during *** climate variables analysed above increased the yields of groundnuts,cowpeas,and soybeans by 49.0%,55.0%,and 69.0%,*** yields of groundnuts,cowpeas,and soybeans fluctuated with the variability of 30.0%,28.0%,and 27.0%from 2005 to 2020,*** three leguminous crops under study demonstrated unpredictable yields due to the variations of annual rainfall,annual average temperature,rainfall onset,rainfall cessation,the length of rainy days,and